A large part of Ray Duchâ€™s research has involved large data projects. This includes the assembly and analysis of very diverse cross-national data. He has developed innovative methods for both the collection, and analysis, of these data. Ray Duch is one of the leading comparative scholars of political and economic attitudes. His research in this area has involved the merging and analysis of large numbers of public opinion surveys from very diverse national contexts. He has also been retained for a wide variety of consultancy projects that involve the secondary analysis of large numbers of public opinion surveys. Ray Duch has also taught advanced econometric methods for much of his academic career. These econometric techniques are the foundation for much of his research and consulting activities. Again many of these projects have involved econometric modeling and forecasting employing very large datasets from different national contexts (such as national census data or labour market surveys). Some of these academic and consulting projects are summarized here.